package com.atguigu.springCloud.service.impl;

import com.atguigu.springCloud.service.IMessageProvider;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;

import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.support.MessageBuilder;


import javax.annotation.Resource;
import java.util.UUID;

@EnableBinding(Source.class) //定义消息的推送管道（Source是spring的）
public class lIMessageProviderImpl implements IMessageProvider {


    @Resource
    private MessageChannel output;

    @Override
    public String send() {
        String serial  = UUID.randomUUID().toString();
        output.send(MessageBuilder.withPayload(serial).build());
        System.out.println("*******serial"+serial);
        return null;
    }
}
